:root{--ink:#132238;--muted:#617086;--line:#e4eaf1;--soft:#f5f8fc;--card:#fff;--brand:#2563eb;--brand-dark:#1d4ed8;--shadow:0 12px 35px rgba(19,34,56,.08)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:#fff;line-height:1.65}.container{width:min(1160px,92%);margin:auto}.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(228,234,241,.9)}.nav{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{font-size:1.45rem;font-weight:850;text-decoration:none;color:var(--ink);letter-spacing:-.04em}.brand span{font-weight:500}.nav nav{display:flex;align-items:center;gap:24px}.nav a{color:var(--ink);text-decoration:none;font-weight:600;font-size:.94rem}.nav nav a:last-child{padding:9px 14px;border:1px solid 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h1{font-size:clamp(2.45rem,13vw,4rem)}.lead{font-size:1.05rem}.section{padding:58px 0}.grid,.fields{grid-template-columns:1fr}.card{padding:21px}.calcbox,.calc{padding:20px;border-radius:16px}.footer-grid{flex-direction:column}.footer-grid a{display:block;margin:7px 0}.article{padding:42px 0}.ad-slot{display:none}}